Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Ka4 win in 1 half-moves
2 Kc4 win in 1 half-moves
3 Kg2 win in 1 half-moves
4 Rf8 draw
5 Ka5 loss in 2 half-moves
6 Ka6 loss in 2 half-moves
7 Kb6 loss in 2 half-moves
8 Kc5 loss in 2 half-moves
9 Kc6 loss in 2 half-moves
10 Kg1 loss in 2 half-moves
11 Kh2 loss in 2 half-moves
12 Ra8 loss in 2 half-moves
13 Rb6 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves
20 Kb4 loss in 1 half-moves